Network Security: Definition, Importance, Types, and Security Tools Explained Network security is a comprehensive approach that integrates multiple layers of protection across applications, hardware, and software. These layers collaborate to defend the network against both internal and external threats. Network security functions by implementing several protective measures such as: Filtering network traffics Encrypting sensitive data like usernames, passwords, and payment details . Monitoring for unusual network activity. Restricting access to only authorized users. Rather than depending on a single tool, network security combines various security strategies to create a robust defense system. What is network security? Network security refers to the process of safeguarding a network from unauthorized access and cyber threats. It involves using various tools, policies, and network configurations to ensure data remains secure while maintaining system performance. Think of it as a securit...